57 lines
1.6 KiB
Python
57 lines
1.6 KiB
Python
#!/usr/bin/env python
|
|
|
|
#
|
|
# Simplest possible example of using RF24Network,
|
|
#
|
|
# RECEIVER NODE
|
|
# Listens for messages from the transmitter and prints them out.
|
|
#
|
|
from __future__ import print_function
|
|
import time
|
|
from struct import *
|
|
from RF24 import *
|
|
from RF24Network import *
|
|
|
|
# CE Pin, CSN Pin, SPI Speed
|
|
|
|
# Setup for GPIO 22 CE and GPIO 25 CSN with SPI Speed @ 1Mhz
|
|
#radio = radio(RPI_V2_GPIO_P1_22, RPI_V2_GPIO_P1_18, BCM2835_SPI_SPEED_1MHZ)
|
|
|
|
# Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 4Mhz
|
|
#radio = RF24(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_4MHZ)
|
|
|
|
# Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 8Mhz
|
|
#radio = RF24(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_8MHZ)
|
|
|
|
# Setup for GPIO 22 CE and CE0 CSN for RPi B+ with SPI Speed @ 8Mhz
|
|
#radio = RF24(RPI_BPLUS_GPIO_J8_22, RPI_BPLUS_GPIO_J8_24, BCM2835_SPI_SPEED_8MHZ)
|
|
|
|
radio = RF24(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_24, BCM2835_SPI_SPEED_8MHZ)
|
|
network = RF24Network(radio)
|
|
|
|
millis = lambda: int(round(time.time() * 1000))
|
|
octlit = lambda n:int(n, 8)
|
|
|
|
# Address of our node in Octal format (01, 021, etc)
|
|
this_node = octlit("00")
|
|
|
|
# Address of the other node
|
|
other_node = octlit("01")
|
|
|
|
radio.begin()
|
|
time.sleep(0.1)
|
|
network.begin(90, this_node) # channel 90
|
|
radio.printDetails()
|
|
packets_sent = 0
|
|
last_sent = 0
|
|
|
|
while 1:
|
|
network.update()
|
|
while network.available():
|
|
header, payload = network.read(8)
|
|
print("payload length ", len(payload))
|
|
ms, number = unpack('<LL', bytes(payload))
|
|
print('Received payload ', number, ' at ', ms, ' from ', oct(header.from_node))
|
|
time.sleep(1)
|
|
|